I have 15 job steps, i want to execute only step 11 and step 12. Now my
query is i can execute steps 11 and 12 by using step Restart but how can
i stop executing beyond step 12, i.e i dont want execution beyond step 12.

Just insert a null card after the 12th step. i.e just give a //.
it will solve ur problem, I think no need to think that much offffffff....

I have 15 job steps, i want to execute only step 11 and step 12. Now my query is i can execute steps 11 and 12 by using step Restart but how can i stop executing beyond step 12, i.e i dont want execution beyond step 12.